The social cost of carbon (SCC) is a commonly employed metric of the expected economic damages from carbon dioxide (CO2) emissions. Although useful in an optimal policy context, a world-level approach obscures the heterogeneous geography of climate damage and vast differences in country-level contributions to the global SCC, as well as climate and socio-economic uncertainties, which are larger at the regional level.

Heavy-duty vehicles (HDVs) are currently responsible for about one-fourth of fuel consumption and greenhouse gas emissions from the transport sector in the European Union. Within the HDV sector in the EU, tractor-trailers represent the largest share of CO2, accounting for roughly 70% of emissions.

On May 30, 2018, Canada published final standards to reduce greenhouse gas (GHG) emissions from new on-road heavy-duty vehicles. The new regulation is part of Canada’s economy-wide commitment to reduce GHG emissions 30% by 2030 compared to a 2005 baseline.